IMBIV   05474
INSTITUTO MULTIDISCIPLINARIO DE BIOLOGIA VEGETAL
Unidad Ejecutora - UE
artículos
Título:
Contribution of Soil Components on the Sorption of Chlorpyrifos
Autor/es:
SAVINI MONICA CLAUDIA; PAROLO MARÍA EUGENIA; NICOTRA VIVIANA; NICOTRA VIVIANA; LOEWY RUTH MIRIAM; LOEWY RUTH MIRIAM; SAVINI MONICA CLAUDIA; PAROLO MARÍA EUGENIA
Revista:
WATER AIR AND SOIL POLLUTION
Editorial:
SPRINGER
Referencias:
Lugar: Berlin; Año: 2016 p. 1 - 12
ISSN:
0049-6979
Resumen:
It is generally assumed that the sorption of a nonionic pesticide on soil depends mainly on the content of soil organic matter (SOM); however, there are other factors that can contribute to this process. The possible causes of variation in the carbon-normalized partition coefficient (KOC) for chlorpyrifos (CPF) for a diverse set of ten soils have been investigated. On the one hand, the analysis of the chemical composition of the SOM was analyzed, and on the other hand, the likely interactions between the organic matter and the mineral phase were assessed. Sorption experiments of CPF were performed on whole soil, on soils treated with 2% hydrofluoric acid (HF), and onto calcined soil at 550 °C. Organic matter chemistry of soil was determined by 13C CP/MAS NMR spectroscopy; KOC values were positively correlated with aryl C relative proportion and negatively correlated with alkyl C and O-aryl C proportions and prediction equation of KOC was found (R2 = 0.82, p